1. FREEZER, MICROWAVE AND DISHWASHER – Airtight containers are for use in temperatures from -40°F (-40°C) to 446°F (230°C). Suitable for dishwashers, microwaves, and zers. For optimal results in the microwave, remove the lid or pull out the air vent valve before heating. 2. VARIOUS SIZES – collapsible containers come in four sizes: Small (350ml / 11oz), Medium (540ml / 18oz), Large (800ml / 27oz), and Extra Large (1200ml / 40oz). Ideal for storing hot and cold foods, including liquids and solids. The lid features a durable valve that snaps shut to ensure a tight seal. Containers collapse to one-third of their size for easy storage in cabinets, drawers, refrigerators, and zers. 3. SOFT & SAFE – Made from top food-grade silica gel, our containers are non-toxic, tasteless, odorless, and BPA-. They are FDA compliant and easy to clean. The soft, unbreakable material is resistant to high falls, ensuring long-lasting use. A high-quality, uncrackable sealing rubber ring lid protects food from spills. 4. PRACTICAL - Designed for everyday use. Ideal for picnics, camping, RV trips, and bringing home leftovers. Easily fits in car compartments, purses, coolers, and kitchen cabinets. Perfect for ' lunchboxes and office lunches. Reduces storage space by up to 60% compared to heavy glass containers, while remaining lightweight and easy to carry.